The conjugal union between a man and a woman, established by God and ordered toward the procreation and education of offspring, and the mutual good of the spouses, constitutes a sacrament when validly entered into by baptized individuals. This bond, understood as indissoluble, reflects the union of Christ and the Church. Key elements include free consent, the intention to remain faithful and open to children, and adherence to canonical form, which typically involves celebration in the presence of a priest or deacon and two witnesses.
This understanding provides a framework for family life, seen as the fundamental unit of society. It offers spiritual and emotional stability, and it is considered a pathway to holiness for both partners. Historically, it has shaped moral and legal norms concerning relationships, fidelity, and parental responsibilities, contributing to the development of social institutions and cultural values across different eras and societies influenced by Christian doctrine.